Home / 15,736.57-21,716.47-8,662.94

Finding the Fourth Proportional to 15,736.57, 21,716.47 and 8,662.94

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Solution

The fourth proportional to 15,736.57, 21,716.47 and 8,662.94 is: 11,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.57 : 21,716.47 = 8,662.94 : x
  2. Step 2: Convert to fraction form
    15,736.57/21,716.47 = 8,662.94/x
  3. Step 3: Cross multiply
    15,736.57x = 21,716.47 × 8,662.94
  4. Step 4: Simplify right side
    15,736.57x = 188,128,476.62
  5. Step 5: Solve for x
    x = 188,128,476.62/15,736.57
  6. Step 6: Final answer
    x = 11,954.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.